Preheat Oven
Preheat oven to 400°F (200°C).
Line a baking sheet with parchment paper.
Roast the Beets
Toss beet wedges with olive oil, salt, and pepper.
Spread evenly on baking sheet.
Roast for 30–35 minutes, flipping halfway through.
During the last 5 minutes, drizzle balsamic vinegar over the beets.
Continue roasting until fork-tender and slightly caramelized.
Remove and set aside.
Cook the Cauliflower
Bring a large pot of salted water to a boil.
Add cauliflower florets and garlic cloves.
Boil for 12–15 minutes until very tender.
Drain thoroughly and let sit in colander for 2–3 minutes to remove excess moisture.
Blend the Mash
Transfer cauliflower and garlic to a food processor or high-speed blender.
Add olive oil, plant-based milk, salt, pepper, and nutritional yeast (if using).
Blend until smooth and creamy.
If needed, add plant milk 1 tablespoon at a time to reach desired consistency.
Assemble
Spread cauliflower mash onto a serving platter.
Spoon balsamic beets over the top.
Garnish with fresh herbs or a light drizzle of olive oil.
Serve warm.